Category Archives: UM

Can’t call UM – Event ID 44022

11 Wednesday Dec 2013

Posted by in Event ID 44022, Exchange UM 2010, UM

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Issue

Unable to call UM

Evidence

Every time a call is made to the UM server the following error is logged on the Lync server front end:-
Log Name:      Lync Server
Source:        LS Exchange Unified Messaging Routing
Date:          10/12/2013 09:27:05 PM
Event ID:      44022
Task Category: (1040)
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      lyncFE.lynclab.local
Description:
An attempt to route to an Exchange UM server failed.
The attempt failed with response code 504: exchum.lynclab.local.
Request Target: [DefaultUM@exchum.company.local], Call Id: [9f9a3df33d2544a9a22ff2c17feedcb5].
Failure occurrences: 4, since 10/12/2013 08:36:55 PM.
Cause: An attempt to route to an Exchange UM server failed because the UM server was unable to process the request or did not respond within the allotted time.
Resolution:
Check this server is correctly configured to point to the appropriate Exchange UM server. Also check whether the Exchange UM server is up and whether it in turn is also properly configured.”

Solution

Make sure the dialplan is configured to use TLS (and not TCP). 
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UM Badmail

05 Monday Aug 2013

Posted by in badmail, UM

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Problem
Actually this is more of a where is it than an issue 😉
Where is the voicemail stored in UM before sending to Exchange? This includes the bad voicemail folder

Solution
C:Program FilesMicrosoftExchange ServerV14UnifiedMessaging…

Event ID 1400 – UM Server

22 Friday Feb 2013

Posted by in event id, Event ID 1400, Exchange UM 2010, SIP Options, UM

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I recently set up Lync 2010 at our offices and ran into a snag with Exchange 2010 SP2 UM voice mail integration. The symptom was the following error in Exchange 2010 UM:

The following UM IP gateways did not respond as expected to a SIP OPTIONS request.


Additional symptoms were that Lync client are unable to call voice mail and users are unable to leave a message for Lync users.

The Culprit

There are 2 possibilities here…
#1
The UM IP gateway in Exchange 2010 which is set up by running the ExchUCUtil.ps1 script doesn’t have a port listed in the configuration. This can be viewed by running:

Get-UMIPGateway | fl


Resolution

Run Set-UMIPGateway -Port 5061


#2
The certificate assigned to the Exchange UM Server Role was not using its own FQDN as the Subject Name (SN), instead the SN was mail.domain.com. Interestingly this was working perfectly well before when we were on SP1…


Resolution
Re-issued a cert with the FQDN of the UM server as the subject name.